Grade C vices have cosmetic and mechanical damage. They do not operate as intended and they may have various dents, deep scratches, scuffs, imperfections or machining marks. The colours may vary across the vice with some parts having different colour tones or finishes. The lead screw may get stuck or not move smoothly, or other mechanical issues may be present. Each one is different in its own way and the damage will vary. Clamp any shape Longer clamping zone for those bigger pieces, Aerospace grade aluminium for a lighter, but sturdy, vise option A desktop Fractal Vise in black anodised aerospace grade aluminium with hardened stainless steel jaws and a 82mm (3.2”) clamping zone.